Techniques for improved heavy particle searches with jet substructure
High Energy Physics - Phenomenology
2009-11-06 v4
Abstract
We present a generic method for improving the effectiveness of heavy particle searches in hadronic channels at the Large Hadron Collider. By selectively removing, or pruning, protojets from the substructure provided by a k_T-style jet algorithm, we improve the mass resolution for heavy decays and decrease the QCD background. We show that the protojets removed are typical of soft radiation and underlying event contributions, and atypical of accurately reconstructed heavy particles.
Cite
@article{arxiv.0903.5081,
title = {Techniques for improved heavy particle searches with jet substructure},
author = {Stephen D. Ellis and Christopher K. Vermilion and Jonathan R. Walsh},
journal= {arXiv preprint arXiv:0903.5081},
year = {2009}
}
Comments
4 pages, 3 figures; 5 pages, provide definition of h_T, correct description of making cells massless; IR safe definition for parameter D_cut, more complete references, comparisons to matched QCD jet samples, slightly changed figures; correct references;